Date: Sat, 14 May 2005 09:35:48 +0200 From: Erik Trulsson <ertr1013@student.uu.se> To: "Colin J. Raven" <colin@kenmore.kozy-kabin.nl> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Strange kernel messages Message-ID: <20050514073548.GA96049@falcon.midgard.homeip.net> In-Reply-To: <20050514090844.Q9329@kenmore.kozy-kabin.nl> References: <20050514090844.Q9329@kenmore.kozy-kabin.nl>
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On Sat, May 14, 2005 at 09:14:20AM +0200, Colin J. Raven wrote: > Hi all! > I occasionally get these in my daily security run output (which is > worrying in itself) > > Limiting closed port RST response from 1629 to 200 packets per second > > the number of these can range from one or two, to sometimes 25 - 30 > although the latter case is rarer. Usually there's about six or so. > These don't arrive every day, usually about once per week on average. > > Is this an OS response to an attempted attack, limiting potential DDOS > damage? That's how I'm reading it, but of course I'm guessing. If that > *is* so, what mechanism is doing this? > > FreeBSD 4.11 STABLE See the FAQ: http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/networking.html#ICMP-RESPONSE-BW-LIMIT -- <Insert your favourite quote here.> Erik Trulsson ertr1013@student.uu.se
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